_install_keyword should use VECTOR_LAST_SLOT(), which has better error
checking. It should also fail if it gets a NULL pointer, instead of
dereferencing it. Found by coverity.
Signed-off-by: Benjamin Marzinski <bmarzins@xxxxxxxxxx>
---
libmultipath/parser.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/libmultipath/parser.c b/libmultipath/parser.c
index b8b7e0d..92ef7cf 100644
--- a/libmultipath/parser.c
+++ b/libmultipath/parser.c
@@ -79,12 +79,16 @@ _install_keyword(vector keywords, char *string,
struct keyword *keyword;
/* fetch last keyword */
- keyword = VECTOR_SLOT(keywords, VECTOR_SIZE(keywords) - 1);
+ keyword = VECTOR_LAST_SLOT(keywords);
+ if (!keyword)
+ return 1;
/* position to last sub level */
- for (i = 0; i < sublevel; i++)
- keyword =
- VECTOR_SLOT(keyword->sub, VECTOR_SIZE(keyword->sub) - 1);
+ for (i = 0; i < sublevel; i++) {
+ keyword = VECTOR_LAST_SLOT(keyword->sub);
+ if (!keyword)
+ return 1;
+ }
/* First sub level allocation */
if (!keyword->sub)
--
2.7.4
--
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